流動接触分解排ガスからのエチレンの回収方法
- 专利权人:
- 发明人:
- 申请号：
- JP20130525839
- 公开号：
- JP5721834(B2)
- 申请日:
- 2011.08.26
- 申请国别(地区):
- 日本
- 年份:
- 2015
- 代理人:
- 摘要：
A method and apparatus for concentrating and recovering ethylene from the off-gas from an apparatus which produces gasoline, propylene and the like by fluidized catalytic cracking (FCC) of heavy oils such as atmospheric residue, generated in a crude oil refining process, is provided. The method and apparatus can reduce the amount of ethylene rinse in the subsequent ethylene displacement desorption process by increasing the ethylene purity of a raw material gas and reducing the concentration of weakly adsorbing components in the raw material gas and can reduce the loss of a desorbent during a distillation process for separating the desorbent from the weakly adsorbing components. Thus, ethylene can be recovered from the off-gas from fluidized catalytic cracking of heavy oils at high concentration and low cost.
- 来源网站：
- 中国工程科技知识中心
